Factors Affecting Visibility - Condensation and Evaporation

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What determines the direction of water vapor movement after evaporation?

The direction and pattern of wind flow in the region

What is the primary cause of visibility degradation?

The absorption and scattering of light by particles and gases in the atmosphere

What is a fog or mist?

A cloud that has formed close to the earth's surface

What is the definition of visibility?

<p>The distance at which an object or light can be clearly discerned</p> Signup and view all the answers

What is the visibility range considered as 'zero' visibility?

<p>Less than 100 meters</p> Signup and view all the answers

What is the primary condition for the formation of fog?

<p>Air temperature equal to or below the dew point</p> Signup and view all the answers

Which factor is not listed as a condition that can help clear fog?

<p>Decrease in relative humidity</p> Signup and view all the answers

What is the primary difference between fog and haze?

<p>Haze involves dry particles, fog involves water droplets</p> Signup and view all the answers

What visibility range defines the meteorological phenomenon as 'fog'?

<p>Less than 1 km</p> Signup and view all the answers

What atmospheric condition is associated with the formation of haze?

<p>Relative humidity below 95%</p> Signup and view all the answers

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